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// license: GPL-2.0+
// copyright-holders: Dirk Best
/***************************************************************************
SAM Coupe Expansion Slot
64-pin slot
***************************************************************************/
#include "emu.h"
#include "expansion.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(SAMCOUPE_EXPANSION, samcoupe_expansion_device, "samcoupe_expansion", "SAM Coupe Expansion Bus")
//**************************************************************************
// SLOT DEVICE
//**************************************************************************
//-------------------------------------------------
// samcoupe_expansion_device - constructor
//-------------------------------------------------
samcoupe_expansion_device::samcoupe_expansion_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, SAMCOUPE_EXPANSION, tag, owner, clock),
device_single_card_slot_interface<device_samcoupe_expansion_interface>(mconfig, *this),
m_int_handler(*this),
m_module(nullptr)
{
}
//-------------------------------------------------
// samcoupe_expansion_device - destructor
//-------------------------------------------------
samcoupe_expansion_device::~samcoupe_expansion_device()
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void samcoupe_expansion_device::device_start()
{
// get inserted module
m_module = get_card_device();
// resolve callbacks
m_int_handler.resolve_safe();
}
//-------------------------------------------------
// host to module interface
//-------------------------------------------------
uint8_t samcoupe_expansion_device::mreq_r(offs_t offset)
{
if (m_module)
return m_module->mreq_r(offset);
return 0xff;
}
void samcoupe_expansion_device::mreq_w(offs_t offset, uint8_t data)
{
if (m_module)
m_module->mreq_w(offset, data);
}
uint8_t samcoupe_expansion_device::iorq_r(offs_t offset)
{
if (m_module)
return m_module->iorq_r(offset);
return 0xff;
}
void samcoupe_expansion_device::iorq_w(offs_t offset, uint8_t data)
{
if (m_module)
m_module->iorq_w(offset, data);
}
WRITE_LINE_MEMBER( samcoupe_expansion_device::xmem_w )
{
if (m_module)
m_module->xmem_w(state);
}
WRITE_LINE_MEMBER( samcoupe_expansion_device::print_w )
{
if (m_module)
m_module->print_w(state);
}
//**************************************************************************
// MODULE INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_samcoupe_expansion_interface - constructor
//-------------------------------------------------
device_samcoupe_expansion_interface::device_samcoupe_expansion_interface(const machine_config &mconfig, device_t &device) :
device_interface(device, "samcoupeexp")
{
m_expansion = dynamic_cast<samcoupe_expansion_device *>(device.owner());
}
//-------------------------------------------------
// ~device_samcoupe_expansion_interface - destructor
//-------------------------------------------------
device_samcoupe_expansion_interface::~device_samcoupe_expansion_interface()
{
}
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